Toy aeroplane stabilizer



Nov. 27, 1934.

w. MEINERT TOY AEROPLANE STABILIZER Filed April 5, 1933 IN VEN TOR.

ATTORNEY Patented Nov. 27, 1934 UNITED STATES PATENT OFFICE TOY AEROPLANE STABILIZER Willy Meinert, Brooklyn, N. Y.

Application April 5, 1933, Serial No. 664,473

1 Claim. (01. 244-29) This invention relates to toy aeroplanes of the heavier than air type and irrespective of the number of wings on the machine.

It is well known that due to conditions of the air, such as adverse currents and air pockets, such aeroplanes occasionally tilt sidewise from a horizontal position, in which event disaster is likely to occur.

It is therefore an object of this invention to i provide means whereby a true horizontal position of the wings is maintained under all conditions.

A further feature is in the provision of a stabilizing device whereby a toy aeroplane is retained in equilibrium at all times, irrespective of air conditions.

Another purpose is to produce a device, which may be attached to any ordinary form of aeroplane, for producing an equalizing result, whereby the wings are brought to a level horizontal position, should deviation occur, thereby preventing tail spins and side slipping.

These several objects are attained by the novel construction and arrangement ofparts hereinafter described and shown in the accompanying drawing, forming a material part of this disclosure, and in which:-

Figure 1 is a perspective view of a conventional type of aeroplane equipped with an embodiment of the equalizing device.

Figure 2 is an enlarged, fragmentary perspective view showing the mechanism in greater detail.

Figure 3 is a front elevational view showing the device as applied.

Referring in greater detail to the drawing, the fuselage or body of the aeroplane is indicated by the numeral 10, fully equipped with a cock pit 11, propeller 12 at the front, horizontal and vertical rudders respectively 13 and 14 at the rear, and extending below the fuselage is a landing device, generally designated by the numeral 15, having wheels 16 of the usual type.

In the views shown in Figures 1 and 2, the machine is indicated to be of the monoplane type, having a single wing 17 extending uniformly outward from both sides of the fuselage, at the top, and provided at its trailing edge with ailerons 18 in its end portions.

The foregoing description is applicable generally to ordinary types of aeroplanes and does not constitute the invention, which will now be described.

Arranged in the fuselage, forwardly of the cock pit, are two stationary studs 20 and 21, respectively upper and lower, and pivotally mounted on the lower stud 21 is a pendulous bar 22 having a weight 23 secured to its lower extending end.

Carried by the upper end of the bar 22 is a pin 24 movable in a slot 25 in the forks of a lever 26, pivoted on the upper stud 20, best seen in Figure 2.

A pair of opposed lugs 27 on the bar 22, below its fulcrum, has engaged in them hooks formed on the inner ends of rods 28, extending laterally o5 outward and having fixed on their outer ends rigid connections 29, extending upwardly and secured at their upper ends to a horizontal rod 30 which also passes through a slotted opening in the end of the lever 26 which operates between collars fixed on the rod in such manner as to move in unison longitudinally therewith.

The ends of the rods 30 are pivotally engaged with one of the slotted arms 31 of bell-crank levers pivoted at 32 on the upper side of the wing 1'7, and having its other slotted arm 32 engaged in a link 33, passing through a guide 34 fixed on the wing and pivoted at its opposite rearwardly extending end to a bracket 35 attached on the ailerons 18.

From the foregoing it will be obvious that if the aeroplane dips from a horizontal position, the weighted pendulum 22 operates through the links and levers, causing the ailerons to turn upon the hinges by which they are attached to the wing, one of the ailerons moving in an opposite direction to the other, and, due to the force of the air against the reversely positioned ailerons, causes it to assume a horizontal position, irrespective of the direction of which the plane may have tipped, the operation being entirely I automatic.

Although the foregoing is descriptive of the preferred embodiment of the invention, it will be apparent that minor changes may be made 9 in its construction, without the exercise of invention or conflicting with the scope of the claims hereto appended.

Having thus describedthe invention, what is claimed as new and desired to secure by Letters Patent, is:-

An equalizing device for toy, aeroplanes comprising a weighted pendulous lever having a pair of opposed lateral cars, a second lever pivoted in a plane above the fulcrum of the first named lever, operative connections between said levers intermediate the pivotal points thereof, rods hooked in said eyes, vertical arms rigidly attached at the extremities of said rods, a bar extending longitudinally and closely adjacent over the aeroplane wings, said bar being rigidly connected to the upper ends of said arms and passing through the upper extremity of the second named lever, a pair of bell-crank levers pivoted in opposed relation on the surface of an aerop1anewing,oneof the arms of the said levers connecting with the ends of said rod, bearings fixed 

